Firedog Martha / Martha's Pickle

S1, E8: Martha wants to be a firehouse dog, just like her favorite book, Firehouse Freddie. But somehow all the things Freddie makes look so easy—climbing ladders, carrying hoses—aren't as easy for a real dog to do. Will Martha give up on her dream? / Have giant alien pickles invaded Wagstaff City? Truman saw something just like it in a movie, but he never saw the ending. Now they're racing the clock to figure out how to defeat the aliens, before they’re really in a pickle!